The MD-200A8X Desktop Microphone is designed for base station operation with the latest generation ofYaesu HF transceivers, including those with VHF/UHF capability. Designed especially for ultra-low distortion and the highest fidelity, the MD-200A8X includes a new-technology "Variable Side Pressure Control" (VSPC)*, which allows precise adjustment of the microphone's audio response without resorting to "active" equalization circuits that can introduce distortion and/or degrade signal-to-noise ratio. The exceptional fidelity of the MD-2D0a8x is realized through the use of a high-quality Polyethylene Terephthalate Dynamic Element, which provides wide dynamic range. Using the VSPC control, "Hi-Fi" (totally flat), "DX" (additional "brightness" in the high-frequency range), or intermediate frequency responses can be set up The MD-2D0a8x includes provision for the installation of a user-supplied Dynamic, Magnetic, or Crystal Microphone element, which then can be selected via a convenient slide switch on the microphone's base. The MD-200A8X microphone's housing is suspended in a solid metal yoke with a shock-absorbing rubberised ring, to absorb low-frequency vibrations that can ruin fidelity and rob power from desired frequencies. Convenient switches for PIT and scanning activation are located on the solid aluminium die-cast base.